51063012553 has 6 divisors (see below), whose sum is σ = 59399830986. Its totient is φ = 43768296432.

The previous prime is 51063012527. The next prime is 51063012607. The reversal of 51063012553 is 35521036015.

It can be written as a sum of positive squares in only one way, i.e., 38336465209 + 12726547344 = 195797^2 + 112812^2 .

It is not a de Polignac number, because 51063012553 - 2⁹ = 51063012041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51063012053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521051100 + ... + 521051197.

It is an arithmetic number, because the mean of its divisors is an integer number (9899971831).

Almost surely, 2^51063012553 is an apocalyptic number.

It is an amenable number.

51063012553 is a deficient number, since it is larger than the sum of its proper divisors (8336818433).

51063012553 is a wasteful number, since it uses less digits than its factorization.

51063012553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042102311 (or 1042102304 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 51063012553 its reverse (35521036015), we get a palindrome (86584048568).

The spelling of 51063012553 in words is "fifty-one billion, sixty-three million, twelve thousand, five hundred fifty-three".